阅读说明：本技术 一种低温流化床干燥机 (Low-temperature fluidized bed dryer ) 是由 孙海森 曲蕾 王光智 宫善武 姜静宇 于 2021-10-27 设计创作，主要内容包括：本发明公开了一种低温流化床干燥机,涉及流化床技术领域,包括机架和鼓风机,机架上安装干燥筒体,鼓风机的出口端通过进气管与干燥筒体连通,还包括与干燥筒体连通的输料套管,干燥筒体内部固定安装有自上而下依次设置的分散板和孔板,所述孔板中心通过轴承连接安装有旋转套管,旋转套管上穿设有旋转轴,旋转轴滑动贯穿分散板,所述旋转套管上安装有用于驱动旋转轴竖直往复运动的气动顶推机构,所述旋转轴侧壁固定有若干个分散齿板；本发明通过设置的鼓风机向干燥筒体内部鼓入压力气流,压力空气对分散板上的颗粒物料进行干燥,在此过程中,旋转轴带动分散齿板旋转,实现对分散板上物料的分散效果,促进颗粒的充分干燥。(The invention discloses a low-temperature fluidized bed dryer, which relates to the technical field of fluidized beds and comprises a rack and an air blower, wherein a drying cylinder is arranged on the rack, the outlet end of the air blower is communicated with the drying cylinder through an air inlet pipe, the low-temperature fluidized bed dryer also comprises a material conveying sleeve communicated with the drying cylinder, a dispersion plate and a pore plate which are sequentially arranged from top to bottom are fixedly arranged in the drying cylinder, the center of the pore plate is connected and installed with a rotating sleeve through a bearing, a rotating shaft penetrates through the rotating sleeve, the rotating shaft penetrates through the dispersion plate in a sliding manner, a pneumatic pushing mechanism used for driving the rotating shaft to vertically reciprocate is arranged on the rotating sleeve, and a plurality of dispersion toothed plates are fixed on the side wall of the rotating shaft; according to the invention, the pressure air flow is blown into the drying cylinder body through the arranged blower, the pressure air dries the granular materials on the dispersing plate, and in the process, the rotating shaft drives the dispersing toothed plate to rotate, so that the effect of dispersing the materials on the dispersing plate is realized, and the full drying of the granules is promoted.)

1. The utility model provides a low temperature fluidized bed dryer, includes frame (1) and air-blower (10), installs dry barrel (4) on frame (1), and the exit end of air-blower (10) passes through intake pipe (11) and dry barrel (4) intercommunication, its characterized in that, still include defeated material sleeve pipe (6) with dry barrel (4) intercommunication, the intercommunication is installed storage hopper (5) on defeated material sleeve pipe (6), is equipped with intermittent type feeding mechanism on defeated material sleeve pipe (6), inside fixed mounting of dry barrel (4) has dispersion board (22) and orifice plate (19) that top-down set gradually, orifice plate (19) center is installed rotating sleeve pipe (26) through the bearing connection, wears to be equipped with rotation axis (20) on rotating sleeve pipe (26), and rotation axis (20) slip through dispersion board (22), install the pneumatic pushing gear who is used for driving rotation axis (20) vertical reciprocating motion on rotating sleeve pipe (26), the side wall of the rotating shaft (20) is fixed with a plurality of dispersing toothed plates (16).

2. The low-temperature fluidized bed dryer as claimed in claim 1, wherein the pneumatic pushing mechanism comprises a lifting sleeve ring (24) fixedly sleeved on the rotating shaft (20), the side wall of the lifting sleeve ring (24) is provided with a plurality of connecting frames (25), the connecting frames (25) are fixed with rotating plates (18) corresponding to the pore plates (19), the bottom of the lifting sleeve ring (24) is fixed with a sliding column (30), the rotating sleeve (26) is provided with an extending hole (35) vertically corresponding to the sliding column (30), a return spring (31) is arranged in the extending hole (35), and two ends of the return spring (31) are respectively fixed with the sliding column (30) and the rotating sleeve (26).

3. The low-temperature fluidized bed dryer as claimed in claim 1 or 2, wherein the perforated plate (19) is provided with a plurality of tapered holes (23), and the diameters of the upper ends of the tapered holes (23) are smaller than those of the lower ends.

4. A low temperature fluidized bed dryer according to claim 2, wherein a plurality of strips (27) are fixed evenly to the bottom of the rotating plate (18) in sliding contact with the surface of the perforated plate (19).

5. The low-temperature fluidized bed dryer as claimed in claim 1, wherein the intermittent feeding mechanism comprises a cam (14) driven and connected by a double-shaft motor (8), a material pushing plate (7) is slidably mounted on the material conveying sleeve (6), a limiting plate (29) and a guide block (12) are respectively mounted on the material pushing plate (7) and the material conveying sleeve (6), a guide rod (15) fixed with the limiting plate (29) is slidably arranged on the guide block (12) in a penetrating manner, a supporting plate (13) abutted against the cam (14) is fixed at one end, far away from the limiting plate (29), of the guide rod (15), and a connecting spring (32) is fixed between the limiting plate (29) and the guide block (12).

6. The low-temperature fluidized bed dryer as claimed in claim 5, wherein a transmission sleeve (33) is sleeved on the rotating shaft (20), a clamping strip (21) which is embedded on the transmission sleeve (33) in a sliding manner is fixed on the rotating shaft (20), and the transmission sleeve (33) is in transmission connection with the output shaft of the double-shaft motor (8) through a belt pulley mechanism (9).

7. The low-temperature fluidized bed dryer as claimed in claim 1, wherein the frame (1) is provided with a cyclone separator (3), the inlet end of the cyclone separator (3) is communicated with the top of the drying cylinder (4) through a material guide pipe (28), the top of the cyclone separator (3) is provided with a cold flow pipe (2), and the wall of the drying cylinder (4) is provided with a cavity (17) communicated with the cold flow pipe (2).

Technical Field

The invention relates to the technical field of fluidized beds, in particular to a low-temperature fluidized bed dryer.

Background

Fluidized bed drying, which is to dry powdery or granular materials by using fluidization technology, in the fluidized bed, dry air enters a fluidized material layer through a gas distribution plate, the materials are dispersed in hot air flow, are turned up and down, are mixed and collided with each other, and the air flow and the materials have large contact area, so that the aim of drying the granular materials is fulfilled.

Although patent No. CN 205536893U discloses a fluidized bed drying apparatus, the apparatus includes a blower, and the blower is connected with a heater and a dryer in sequence through a pipeline; the upper part of the dryer is communicated with the external environment; the lower part of the dryer is provided with a working cavity communicated with the heater, the working cavity comprises a first cavity and an Nth cavity, the first cavity is connected with a sample feeding device, and the Nth cavity is connected with a discharging device; however, in the using process of the device, the particle materials cannot be sufficiently dispersed and distributed, so that the particle materials cannot be thoroughly dried.

Disclosure of Invention

The object of the present invention is to provide a low-temperature fluidized bed dryer to solve the problems mentioned in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a low temperature fluidized bed drying machine, includes frame and air-blower, installs dry barrel on the frame, and the exit end of air-blower passes through intake pipe and dry barrel intercommunication, still includes the defeated material sleeve pipe with dry barrel intercommunication, and the storage hopper is installed to the intercommunication on the defeated material sleeve pipe, is equipped with intermittent type feeding mechanism on the defeated material sleeve pipe, the inside fixed mounting of dry barrel has dispersion board and the orifice plate that top-down set gradually, the orifice plate center is connected through the bearing and is installed swivel casing, wears to be equipped with the rotation axis on the swivel casing, and the rotation axis slides and runs through the dispersion board, install the pneumatic pushing mechanism who is used for driving the vertical reciprocating motion of rotation axis on the swivel casing, the rotation axis lateral wall is fixed with a plurality of dispersion pinion rack.

As a modified scheme of the invention: the pneumatic pushing mechanism comprises a lifting lantern ring which is fixedly sleeved on the rotating shaft, a plurality of connecting frames are installed on the side wall of the lifting lantern ring, a rotating plate corresponding to the pore plate is fixed on each connecting frame, a sliding column is fixed at the bottom of the lifting lantern ring, an extending hole which vertically corresponds to the sliding column is formed in the rotating sleeve, a reset spring is arranged in each extending hole, and the two ends of each reset spring are fixed to the sliding column and the rotating sleeve respectively.

As a modified scheme of the invention: a plurality of gradually-reducing holes are uniformly formed in the pore plate, and the diameter of the upper end of each gradually-reducing hole is smaller than that of the lower end of each gradually-reducing hole.

As a modified scheme of the invention: and a plurality of rubber strips which are in sliding butt joint with the surface of the pore plate are uniformly fixed at the bottom of the rotating plate.

As a modified scheme of the invention: intermittent type feeding mechanism includes the cam of being connected by the drive of biax motor, slidable mounting has the scraping wings on the defeated material sleeve pipe, installs limiting plate and guide block on scraping wings and the defeated material sleeve pipe respectively, and the guide arm of wearing to be equipped with the limiting plate is fixed on the guide block, and the limiting plate one end is kept away from to the guide arm is fixed with the board that supports with the cam butt, be fixed with connecting spring between limiting plate and the guide block.

As a modified scheme of the invention: the transmission sleeve is sleeved on the rotating shaft, a clamping strip which is slidably embedded on the transmission sleeve is fixed on the rotating shaft, and the transmission sleeve is in transmission connection with the output shaft of the double-shaft motor through a belt pulley mechanism.

As a modified scheme of the invention: the drying machine is characterized in that a cyclone separator is mounted on the frame, the inlet end of the cyclone separator is communicated with the top of the drying cylinder through a material guide pipe, a cold flow pipe is mounted at the top of the cyclone separator, and a cavity communicated with the cold flow pipe is formed in the wall of the drying cylinder.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the pressure air flow is blown into the drying cylinder body through the arranged blower, the pressure air dries the granular materials on the dispersing plate, and in the process, the rotating shaft drives the dispersing toothed plate to rotate, so that the effect of dispersing the materials on the dispersing plate is realized, and the full drying of the granules is promoted.

2. In the process of rotation of the rotating plate, the rotating plate intermittently corresponds to the gradually-reduced hole, the rotating plate is pushed by pressure air in the gradually-reduced hole, the lifting lantern ring drives the rotating shaft to vertically reciprocate together with the dispersing toothed plate, the dispersing toothed plate fully stirs falling materials, and the drying rate and the filling degree of the granular materials are obviously improved.

3. When the rotating shaft rotates, the intermittent feeding mechanism intermittently pushes the granular materials in the storage hopper into the drying cylinder, so that the concentrated falling of the materials is avoided, the materials are fully dispersed after entering the drying cylinder, and the thorough drying effect is ensured.

Drawings

FIG. 1 is a schematic overall structure view of a perspective of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic overall view from another perspective of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic view of the internal structure of the drying cylinder according to the present invention;

FIG. 6 is a schematic partial cross-sectional view of an orifice plate according to the present invention;

FIG. 7 is a schematic view of a portion of the structure of FIG. 5 in accordance with the present invention;

FIG. 8 is a schematic illustration of the partial exploded view of FIG. 7 in accordance with the present invention;

fig. 9 is a schematic cross-sectional view of the intermittent feed mechanism of the present invention.

In the figure: 1-a frame; 2-a cold flow pipe; 3-a cyclone separator; 4-drying the cylinder; 5-a storage hopper; 6-material conveying sleeve; 7-a material pushing plate; 8-a two-shaft motor; 9-a belt pulley mechanism; 10-a blower; 11-an air inlet pipe; 12-a guide block; 13-a resisting plate; 14-a cam; 15-a guide rod; 16-a dispersive toothed plate; 17-a cavity; 18-a rotating plate; 19-well plate; 20-a rotating shaft; 21-card strip; 22-a dispersion plate; 23-a tapered bore; 24-a lifting collar; 25-a connecting frame; 26-rotating the sleeve; 27-adhesive tape; 28-a material guide pipe; 29-limiting plate; 30-a traveler; 31-a return spring; 32-connecting a spring; 33-a transmission sleeve; 34-an exhaust pipe; 35-extended hole.

Detailed Description

The technical scheme of the patent is further described in detail by combining the following specific embodiments:

example 1

Referring to fig. 1-9, a low-temperature fluidized bed dryer comprises a frame 1 and an air blower 10, wherein a drying cylinder 4 is installed on the frame 1, an outlet end of the air blower 10 is communicated with the drying cylinder 4 through an air inlet pipe 11, the low-temperature fluidized bed dryer further comprises a material conveying sleeve 6 communicated with the drying cylinder 4, a storage hopper 5 is installed on the material conveying sleeve 6 in a communicating manner, an intermittent feeding mechanism is arranged on the material conveying sleeve 6, a dispersion plate 22 and a pore plate 19 which are sequentially arranged from top to bottom are fixedly installed inside the drying cylinder 4, the center of the pore plate 19 is connected with and installed with a rotary sleeve 26 through a bearing, a rotary shaft 20 penetrates through the rotary sleeve 26, the rotary shaft 20 penetrates through the dispersion plate 22 in a sliding manner, a pneumatic pushing mechanism for driving the rotary shaft 20 to vertically reciprocate is installed on the rotary sleeve 26, and a plurality of dispersing toothed plates 16 are fixed on the side wall of the rotary shaft 20.

Inside the dry tube 4 of this device is as the dry place of granule material, through starting air-blower 10, will dry the cold airflow through intake pipe 11 carry dry tube 4 inside, and the cold airflow passes orifice plate 19 and dispersion plate 22 from bottom to top, and drops into granule material top-down through intermittent type feeding mechanism inside dry tube 4, realizes that the granule material receives the drying action of dry cold airflow.

And at the in-process of material whereabouts, the rotation axis 20 drive dispersion pinion rack 16 that sets up is rotatory, and dispersion pinion rack 16 rotates the material and breaks up, promotes the dispersion of granule material for dry full scale degree obtains obviously promoting.

The pneumatic thrustor of this device establishes the lift lantern ring 24 on the rotation axis 20 including the fixed cover, a plurality of link 25 is installed to lift lantern ring 24 lateral wall, be fixed with rotor plate 18 that corresponds with orifice plate 19 on the link 25, lift lantern ring 24 bottom is fixed with traveller 30, seted up on the rotating sleeve 26 with the vertical extension hole 35 that corresponds of traveller 30, be equipped with reset spring 31 in the extension hole 35, reset spring 31 both ends are fixed with traveller 30 and rotating sleeve 26 respectively, a plurality of convergent hole 23 has evenly been seted up on the orifice plate 19, convergent hole 23 upper end diameter is less than the lower extreme diameter.

Through the arrangement, in the rotating process of the rotating shaft 20, the rotating shaft 20 drives the lifting sleeve ring 24 to rotate, the lifting sleeve ring 24 drives the rotating sleeve 26 to rotate through the sliding column 30, meanwhile, the lifting sleeve ring 24 drives the rotating plate 18 to rotate through the connecting frame 25, when the rotating plate 18 rotates to correspond to the tapered hole 23, the air flow pressurized through the tapered hole 23 pushes the rotating plate 18 to move upwards, at the moment, in the relative vertical sliding process of the sliding column 30 and the rotating sleeve 26, the lifting sleeve ring 24 drives the rotating shaft 20 to move upwards, and when the rotating plate 18 rotates to not correspond to the tapered hole 23, under the action of downward elastic tension of the return spring 31, the lifting sleeve ring 24 moves downwards to realize the downward movement of the rotating shaft 20, and the reciprocating motion is repeated, namely, the dispersing toothed plate 16 can rotate and disperse materials at different vertical positions, so as to promote the sufficient dispersion of particle materials, And (5) drying.

In addition, a plurality of rubber strips 27 which are in sliding contact with the surface of the pore plate 19 are uniformly fixed at the bottom of the rotating plate 18, and in the rotating process of the rotating plate 18, the rubber strips 27 at the bottom of the rotating plate 18 slide with the pore plate 19, so that the abrasion between the rotating plate 18 and the pore plate 19 is effectively reduced, and the smoothness of the rotating process of the rotating plate 18 is improved.

Example 2

On the basis of embodiment 1, in addition, the intermittent type feeding mechanism of this device includes the cam 14 by the drive connection of biax motor 8, and slidable mounting has scraping wings 7 on defeated material sleeve pipe 6, installs limiting plate 29 and guide block 12 on scraping wings 7 and defeated material sleeve pipe 6 respectively, and slidable wear to be equipped with the guide arm 15 fixed with limiting plate 29 on guide block 12, and the guide arm 15 is kept away from limiting plate 29 one end and is fixed with the butt 13 with cam 14 butt, is fixed with coupling spring 32 between limiting plate 29 and the guide block 12.

Inside being used for depositing the dry granular material of dress of storage hopper 5, granular material enters into defeated material sleeve pipe 6, under the drive of double-shaft motor 8, cam 14 is rotatory and support to pushing away to support board 13, support board 13 through guide arm 15 drive limiting plate 29 this moment, horizontal reciprocating motion under coupling spring 32's elastic action, the reciprocal slip of defeated material sleeve pipe 6 of scraping wings 7 relative this moment, the realization is with defeated inside the granular material intermittent type propelling movement to dry barrel 4 of defeated material sleeve pipe 6, avoid the concentrated whereabouts of material, make the material can obtain the thorough dispersion of dispersed toothed plate 16, the mixture of material with dry air current has been promoted greatly, promote drying effect.

Furthermore, a transmission sleeve 33 is sleeved on the rotating shaft 20, a clamping strip 21 which is embedded on the transmission sleeve 33 in a sliding manner is fixed on the rotating shaft 20, and the transmission sleeve 33 is in transmission connection with an output shaft of the double-shaft motor 8 through a belt pulley mechanism 9.

The setting double-shaft motor 8 is in the rotatory time of drive cam 14, and double-shaft motor 8 still drives transmission sleeve 33 through belt pulley mechanism 9 and rotates, and transmission sleeve 33 rotates through calorie strip 21 drive rotation axis 20, has realized material intermittent type propelling movement promptly and has dispersed pinion rack 16 to the synchronous operation effect of material dispersion, has promoted the drying rate and the abundant degree of granule material greatly.

In addition, a cyclone separator 3 is arranged on the frame 1, the inlet end of the cyclone separator 3 is communicated with the top of the drying cylinder 4 through a material guide pipe 28, a cold flow pipe 2 is arranged on the top of the cyclone separator 3, and a cavity 17 communicated with the cold flow pipe 2 is arranged on the wall of the drying cylinder 4.

The dried material enters the cyclone separator 3 through the material guide pipe 28 to realize separation, the particle material can be discharged from the bottom of the cyclone separator 3, and the cold airflow in the drying cylinder 4 flows through the cold flow pipe 2 at the top of the cyclone separator 3, enters the cavity 17 formed in the cylinder wall of the drying cylinder 4, and is finally discharged outwards from the exhaust pipe 34 communicated with the cavity 17, during the period, the cold airflow is full of the cavity 17, the heat insulation effect on the drying cylinder 4 is achieved, and the sufficient drying of the material in a low-temperature state is ensured.

In summary, in the invention, the blower 10 is arranged to blow the pressure airflow into the drying cylinder 4, the pressure air dries the particulate material on the dispersing plate 22, and in the process, the rotating shaft 20 drives the dispersing toothed plate 16 to rotate, so that the dispersing effect on the material on the dispersing plate 22 is realized, and the sufficient drying of the particulate is promoted; in the process of rotating the rotating plate 18, the intervals correspond to the gradually-reduced holes 23, the pressure air in the gradually-reduced holes 23 pushes the rotating plate 18, the lifting lantern ring 24 drives the rotating shaft 20 and the dispersing toothed plate 16 to vertically reciprocate, the dispersing toothed plate 16 fully stirs falling materials, and the drying rate and the filling degree of the granular materials are obviously improved; when the rotating shaft 20 rotates, the intermittent feeding mechanism intermittently pushes the granular materials in the storage hopper 5 into the drying cylinder 4, so that the concentrated falling of the materials is avoided, the materials are fully dispersed after entering the drying cylinder 4, and the thorough drying effect is ensured.

It should be particularly noted that although the present specification describes embodiments, not every embodiment includes only a single technical solution, and such description of the specification is for clarity only, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that may be understood by those skilled in the art, and the above embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but cannot therefore be understood as the technical solutions.